Phase relation between the flux through a rotating coil and the induced emf

1. A.
   magnetic flux is zero and induced e.m.f. is maximum.
2. B.
   magnetic flux is maximum and induced e.m.f. is zero.
3. C.
   both magnetic flux and induced e.m.f. are maximum.
4. D.
   both magnetic flux and induced e.m.f. are zero.

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1. A.
   $\pi$
2. B.
   $- \frac{\pi}{6}$
3. C.
   $\frac{\pi}{3}$
4. D.
   $\frac{\pi}{2}$

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